Beat-adjuster for pendulum clocks.



No. 7l6,48l. Patented Dec. 23, I902.

T. BUTTLER.

BEAT ADJUSTER FOR PENDULUM CLOCKS.

(Application filed Aug. 8, 1902.)

(No Model.)

UNITED STATES PATENT OFFICE.

THEODOR ROTTLER, OF WVINSTED, CONNECTICUT, ASSIGNOR TO WM. L.

GILBERT CLOCK COMPANY, OF WINSTED, CONNECTICUT, A CORPORA- BEAT-ADJUSTERFOR PENDULUM CLOCKS.

SPECIFICATION forming part of Letters Patent No. 716,481, dated December23, 1902.

Application filed August 8, 1902.

To all whom it may concern.-

Be it known that I, THEODOR Ro'rTLER, a citizen of the United States ofAmerica, residing at W'insted, in the countyof Litchfield and State ofConnecticut, have inventedcertain new and useful Improvements in Clocks,of which the following is a specification.

My invention has to do particularly with an improved means forregulating the beat of a clock mechanism for maintaining the parts inoperative relation to one another.

Referring to the drawings, Figure 1 is a front view of a clock-framehaving my invention applied thereto. Fig. 2 is a side view of the sameon enlarged scale. Figs. 3 and 4 are detail views.

Referring to the drawings, A denotes the clock-frame in which the worksare mounted, after which it is placed in the clock-case and securedtherein in any desired manner.

13 is the pallet-staff.

C is the pallet.

D is the escape-wheel staff, and E is the escape-wheel.

One end of the pallet-staff is pivoted in the frame in the usual manner,as at b; and the other end is pivoted in the bridge-plate G, as at b.This bridge-plate G is mounted on the escape-wheel staff 0. The end ofthe escapewheel staff is supported by the arms II II. The bridge-plate Gis extended below the pallet-wheel stafi and terminates in a pointer g,cooperating with a graduated scale on the dial. This pointer g alsoserves as a handle.

It is readily seen that the distance between the pallet-staff and theescape-Wheel staff, and consequently the relation between the pallet andthe escape-wheel, is maintained without regard to any strain or warpingwhich may occur and which very often does occur in assembling theclock-movement in its case. It has been customary heretofore to supportthe end of the pallet-stafi separately from the support for theescape-wheel shaft, and it results from this construction that themovement is liable to be strained or warped slightly and the adjustmentof the pallet with respect to the escape-wheel entirely destroyed. It isevident that this is Serial No. 118,887. (No model.)

impossible in the construction herein shown and described.

Another advantage accruing from this construction resides in theconvenient means provided for regulating the beat of the clock. As iswell known, if the support on which the clock is placed is not exactlylevel the cooperation of the pallet with the escape-wheel is hindered orinterrupted, and the clock consequently will not run accurately or elsestops altogether. In order to remedy the difficulty, it has beennecessary heretofore either to level the clock up or else to readjustthe relative positions of the pallet and escape-wheel, and in order todo this it is necessary to get at the back of the clock. 'This of coursenecessitates a change in the position of the clock, and it cannot beregulated with any de ree of accuracy. By the use of the constructionherein shown and described the relative positions of the pallet andescapewheel can be adjusted from the front of the clock withoutdisturbing its position. The manner of accomplishing this result isapparent, inasmuch as if the pointer or handle g is moved in eitherdirection the opposite end of the bridge-plate G, which carries the endof the pallet-staff B, is moved in the arc whose center is the center ofthe escapewheel.

The advantages arising from the adoption of this construction aremanifold, and I am aware that the embodiment of the invention hereinshown and described is susceptible of modification Without departingfrom the scope of the invention.

I claim as my invention 1. In a clock in combination the frame, theescape-wheel staff supported in fixed bearings at each end, and thepallet-staff supported at one end in the frame and at the opposite endin a plate which is connected with J bridge-plate rotarily mounted'onsaid staff,

the pallet-staff supported at one end in the frame and at its oppositeend in said bridgeplate, substantially as described.

3. Ina device of the class specified in combination the frame, theescape-Wheel staff mounted at each end in fixed bearings, thepallet-staff mounted at one end in a fixed bearing and at the oppositeend in a movable bearing, and rigid connections between said movablebearing and the escape-Wheel staff, substantially as described and forthe purposes set forth. w

4:. In a device of the class specified in combination the frame, theescape-Wheel staff supported at the rear in the frame and at the frontin fixed bearings, a bridge-plate rotarily mounted on the front end ofthe escapewheel staff, and the pallet-staff supported at the rear in theframe and at the front in said bridge-plate, substantially as described.

THEODOR ROTTLER.

Vitnesses:

OARABEL KINNEY, SAMUEL A. WETMORE.

